CN207996567U - The equal mixing device of SCR denitration system flue gas and SCR denitration system - Google Patents
The equal mixing device of SCR denitration system flue gas and SCR denitration system Download PDFInfo
- Publication number
- CN207996567U CN207996567U CN201820012927.0U CN201820012927U CN207996567U CN 207996567 U CN207996567 U CN 207996567U CN 201820012927 U CN201820012927 U CN 201820012927U CN 207996567 U CN207996567 U CN 207996567U
- Authority
- CN
- China
- Prior art keywords
- mixing device
- scr denitration
- denitration system
- flue gas
- equal mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model belongs to gas denitrifying technology field, discloses a kind of equal mixing device of SCR denitration system flue gas and SCR denitration system, the equal mixing device include:Support construction is set in flue;And at least one mixed unit, it is set in the support construction, each mixed unit includes at least one movable flabellum, and the activity flabellum can be freely rotated relative to the support construction under external force.The equal mixing device of the utility model substantially change the direction of fluid motion when the gas of ammonia and flue gas being enable to flow through, generate vortex, greatly strengthen the mixability of gas, so that the mixing of the two is more uniform, and then ammonia is enable fully to participate in denitration reaction, the escape for effectively reducing ammonia, improves denitration activity;In addition, the equal mixing device of the utility model is easy to process and installs, strong applicability, pressure drop is smaller, is convenient for large-scale promotion application.
Description
Technical field
The utility model belongs to gas denitrifying technology field, and in particular to a kind of SCR denitration system flue gas loads in mixture
It sets and SCR denitration system.
Background technology
With becoming increasingly conspicuous for environmental problem, nitrogen oxides have become China's air pollution emission main control targe it
One.Selective catalytic reduction (Selective Catalytic Reduction, referred to as " SCR ") is steady because of technical maturity, system
Fixed, the advantages that denitration efficiency is high as gas denitrifying technology first choice.SCR technology is to be sent into reducing agent ammonia by defeated ammonia pipeline
In flue, mixed with the flue gas in flue, then under the effect of the catalyst, reducing agent ammine selective with the NO in flue gasx
It reacts, by NOxIt is reduced into N2, while generating H2O.In this technological process, other than good catalyst itself, separately
One key factor is NO in flue gasxUniform distribution of forces and nitrogen oxides and reducing agent ammonia in the flue gas of catalyst upper layer it is mixed
Close effect.In NH3/NOxToo low place, denitration efficiency cannot be guaranteed;In NH3/NOxExcessively high place, the escaping of ammonia rate can rise
Height causes air pollution, while NH3It can also be with the SO in flue gas3And H2O reactions generate NH4HSO4Or (NH4)2SO4, cause air
The serious stifled ash of preheater, prodigious influence can be caused when serious on the safety of unit and economical operation.However, existing SCR
Phenomena such as flue gas denitrification system, flue arrangement is excessively compact, and flue gas stream is caused to be unevenly distributed, and flue gas mixes unevenness with ammonia, sternly
Denitration efficiency is affected again.Therefore, the equal mixing device of ammonia and flue gas is designed to the pass in SCR flue gas denitrification system technological designs
Key.
For this purpose, Chinese patent CN204034564U discloses a kind of equal mixing device of gas, described device includes at least one set
Static mixer in flue, every group of static mixer are made of 4 mixer units, and each mixer unit is by two
The mixed plate blade of a intersection forms, and mixed plate blade and flue gas flow direction are at 30~60 ° of angles, preferably every piece of mixed plate blade
It is equal with the angle in flow of flue gas direction;The mixed plate blade of the mixer unit is fixed on by supporting rod in flue;Institute
Static mixer is stated at 1m~3m above the ammonia-spraying grid of SCR denitration system.The prior art is arranged in ammonia-spraying grid
Top can stir the flue gas of part, but the flue gas that cannot achieve width up to more than ten meters of flue both sides mutually blends.This
Outside, static mixer is a kind of equipment of not moving component, thus in the patent static mixer mixed plate blade and cigarette
Air-flow to angle be fixed, change cannot be made with the variation in flow of flue gas direction, changed in flow of flue gas direction
When, mixed plate blade will certainly stop the flowing of flue gas, increase gas-flow resistance, increase system pressure drop, reduce mixing efficiency.
In consideration of it, how to be improved the equal mixing device of gas in existing denitrating system to overcome the above deficiency, have become
For this field technical barrier urgently to be resolved hurrily.
Utility model content
Therefore, the technical issues of the utility model solves is that existing SCR denitration system flue gas is overcome to load in mixture
The not high problem of mixing efficiency is set, and then a kind of SCR denitration that can adjust mixed plate blade in real time with flow of flue gas direction is provided
The equal mixing device of system flue gas and the SCR denitration system including it.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows:
The utility model provides a kind of equal mixing device of SCR denitration system flue gas, including:
Support construction is set in flue;
At least one mixed unit, is set in the support construction, and each mixed unit includes at least one activity
Flabellum, the activity flabellum can be freely rotated relative to the support construction under external force.
Further, the blade face of the movable flabellum and the airintake direction of the flue are arranged in angle.
Further, the blade face of the movable flabellum and the airintake direction angle of the flue are 15~90 °.
Further, the mixed unit has 2~15.
Further, the mixed unit further includes rotation axis, and the rotation axis is rotatably connected at the support knot
On structure, the activity flabellum is fixedly connected in the rotation axis.
Further, each mixed unit includes multiple movable flabellums, and multiple movable flabellums are spaced
It shifts to install in the rotation axis.
Further, the movable flabellum has 2~8.
Further, the air inlet on the blade face and the flue of multiple movable flabellums (42) of the same mixed unit
Direction angle is all different.
Further, the blade face autorotation center of the movable flabellum to flabellum radial edges prolonging towards the flue
It stretches direction and tilts and extend.
Further, the coplanar setting of multiple mixed units.
Further, plane where multiple mixed units is arranged perpendicular to the flue extending direction.
Further, the support construction includes the framework being fixedly installed in the flue and arranged in a crossed manner in institute
The supporting rod in framework is stated, the mixed unit is put on the supporting rod.
Further, the mixed unit is set to the intersection of multiple supporting rods.
The utility model additionally provides a kind of SCR denitration system, including:
Flue;
Ammonia-spraying grid is set in the flue;
And the above-mentioned equal mixing device of SCR denitration system flue gas, the equal mixing device are set in the flue.
Further, the equal mixing device is located at the ammonia-spraying grid downstream.
Further, the equal mixing device is also located at the ammonia-spraying grid upstream.
Further, the equal mixing device is set as multiple, is arranged along the extending direction interval of the flue, two neighboring
The spacing distance of the equal mixing device is not less than 1900mm.
Further, it is set to 1~3 positioned at described load in mixture in the ammonia-spraying grid downstream, is located at the ammonia-spraying grid
Upstream, described load in mixture are set to 1~2.
The technical solution of the utility model has the following advantages that:
1. the equal mixing device of SCR denitration system flue gas of the utility model, including support construction and at least one mixed
Unit, the mixed unit are set in the support construction, and each mixed unit includes at least one movable flabellum, described
Movable flabellum can be freely rotated relative to the support construction under external force, change stream by movable flabellum using flue gas
The type of flow Forced Mixing of body, the cross-sectional area by reducing flue increase flow velocity, enhance the turbulivity of fluid in flue, from
And efficiently reduce tail portion the escaping of ammonia rate;The mixed flabellum being fixedly installed in compared to the prior art, the active fan being freely rotated
The variation that leaf can flow direction with flue gas adjusts the angle that flabellum flows direction with flue gas in real time, avoids due to fan
Leaf is fixed, and flabellum is fixed when flue gas air flow state changes to the perturbation action decline of gas, system
Pressure drop increases, and causes the situation that disturbance effect is unstable, utilizes being freely rotated for movable flabellum so that the gas in flue is being fanned
Under the flow-disturbing effect of blade profile active diversion component, form strong eddy flow and turbulent flow, ammonia and flue gas blending ingredients it is shorter away from
Great diffusion and mixing have just been obtained from interior, has improved adaptability of the equal mixing device to flue gas state change, further
The denitration performance of SCR denitration system is promoted, the problems such as SCR denitration system the escaping of ammonia is higher is solved, improves denitration efficiency.
2. the equal mixing device of SCR denitration system flue gas of the utility model, to the quantity of movable flabellum, angle of inclination and
The quantity etc. of mounting means and mixed unit is further defined, and is verified by using hydrokinetics calculation software
Show that the design can quickly execute ammonia with flue gas to mix, greatly improve mixability, realizes uniform between ammonia and flue gas
Mixing, and the resistance of mixing device is about 40Pa, will not obviously increase the flue resistance of SCR denitration system, and it is de- to fully meet SCR
Nitre system performance design requirement.
3. the equal mixing device of SCR denitration system flue gas of the utility model, multiple activities of same mixed unit
The blade face of flabellum and the airintake direction angle of the flue are all different, and therefore, can obviously be subtracted in SCR reactor inlets
The inhomogeneities in small flow field reduces flow field perturbation.
4. the equal mixing device of SCR denitration system flue gas of the utility model, in the blade autorotation of each activity flabellum
The extending direction of the heart to radial edges towards the flue of flabellum, which tilts, to be extended, i.e., the blade face of movable flabellum is not hung down with rotation axis
Straight setting, this set so that blade is different in the circumferential speed of different radial positions, and then leads to the gas velocity around blade
Degree is different, greatly strengthens disturbance effect of the flabellum to gas stream in flue.
5. the equal mixing device of SCR denitration system flue gas of the utility model, the coplanar setting of multiple mixed units,
And plane where multiple mixed units is arranged perpendicular to the flue extending direction, makes the mixed gas stream of ammonia and flue gas
Through the direction of fluid motion can be substantially change when mixed unit, vortex is generated, greatly strengthens the mixability of gas so that two
The mixing of person is more uniform, and then ammonia is enable fully to participate in denitration reaction, effectively reduces the escape of ammonia, improves de-
Nitre activity.
6. the support construction of the equal mixing device of SCR denitration system flue gas of the utility model is described including being fixedly installed on
Framework in flue and arranged in a crossed manner in the supporting rod in the framework, the mixed unit is set to multiple supporting rods
Vertical flue is divided into several trellis channels by intersection, supporting rod arranged in a crossed manner, sprays into the gas in flue by trellis channel
Dispersion, and under the effect of the flow-disturbing of movable flabellum, form strong eddy flow and turbulent flow, make flue gas and ammonia in shorter distance
It inside can be achieved with extremely adequately mixing;And it is arranged to be more advantageous in intersection and mixed stablizing for unit is fixed.
7. the SCR denitration system of the utility model, including flue, it is set to ammonia-spraying grid and SCR denitration system in the flue
It unites the equal mixing device of flue gas, the direction of equal mixing device forcibly changing gas flowing, and make SCR de- in a dynamic way
Nitre system flue gas duct uniform concentration distribution.
8. equal mixing device is arranged in the downstream of ammonia-spraying grid in the SCR denitration system of the utility model, the equal mixing device makes
The ammonia sprayed from ammonia-spraying grid is sufficiently mixed with flue gas.
9. equal mixing device, the equal mixing device energy is arranged in the upstream of ammonia-spraying grid in the SCR denitration system of the utility model
It is enough that flue gas is pre-mixed, so that each component in flue gas is uniformly distributed, and then make each component in flue gas can be abundant with ammonia
Contact.
10. multiple equal mixing devices are arranged in the SCR denitration system of the utility model, and along the extending direction of flue to be not less than
The spacing interval of 1900mm is arranged, which can make gas in SCR denitration system be in turbulence state, to make flue gas and go back
The distribution of former ammonia is more uniform, improves the mixing efficiency of the two;The equal mixing device is arranged with certain spacing interval, really
Lower resistance drop has been protected, energy utilization efficiency is improved.
11. the SCR denitration system of the utility model is 2~5 equal mixing devices of installation in vertical flue, more with needs
The static mixing guiding device that multiple deflectors are installed at place is compared, which is more convenient for processing and installation, applicability
By force, pressure drop is smaller, is suitable for existing SCR flue gas denitrification systems.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the stereochemical structure signal for the equal mixing device of SCR denitration system flue gas that the utility model embodiment 1 provides
Figure;
Fig. 2 is the front view for the equal mixing device of SCR denitration system flue gas that the utility model embodiment 1 provides;
Fig. 3 is the dimensional structure diagram for the mixed unit that the utility model embodiment 1 provides;
Fig. 4 is the SCR denitration system structural schematic diagram that the utility model embodiment 1 provides.
Reference sign:
1- flue entrances;Bending pipeline under 2-;3- ammonia-spraying grids;The equal mixing devices of 4-;5- vertical pipelines;6-SCR reactors
Entrance expansion joint;The upper bending pipelines of 7-;8- flow straightening grids;9- preparing catalyst layers;10- catalyst layers;11- exhanst gas outlets;41-
Framework;42- activity flabellums;43- rotation axis;44- supporting rods.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, can also be electrical connection;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of equal mixing device of SCR denitration system flue gas, by the support construction in flue
It is constituted with the mixed unit of four in the support construction.To ensure that mixing device still can in excessive flue gas stream field
Stable operation, the mixed unit fixed setting is on the support structure.As shown in figure 3, each mixed unit includes two
Movable flabellum 42 and rotation axis 43, two movable flabellums 42 are axially spaced and are fixedly connected in rotation axis 43 with misplacing, and turn
Moving axis 43 is rotatablely arranged at along the extending direction of flue in support construction, and movable flabellum 42 can be opposite under external force
It is freely rotated in the support construction, the movable flabellum 42 being freely rotated can adjust itself and flue gas in real time with flow of flue gas direction
Angle, the flowing without stopping flue gas advantageously reduce system pressure drop, and energy utilization efficiency is high.
In order to reduce the inhomogeneities in flow field in SCR reactor inlets, reduction flow field perturbation is same described equal
The blade face of two movable flabellums 42 of mixed unit and the airintake direction angle of the flue are respectively 15 ° and 60 °, institute
The extending direction for stating the blade face autorotation center of movable flabellum 42 to radial edges towards the flue of flabellum, which tilts, to be extended, and two
A movable flabellum 42 and the angle of rotation axis 43 are 60 °.Four coplanar settings of the mixed unit, and it is flat where it
Face is arranged perpendicular to the flue extending direction, and this set obviously changes when the gas of ammonia and flue gas being enable to flow through mixed unit
The direction of fluid movement, generates vortex, greatly strengthens the mixability of gas so that and the mixing of the two is more uniform, into
And ammonia is enable fully to participate in denitration reaction, the escape of ammonia is effectively reduced, denitration activity is improved.
As shown in Fig. 2, the support construction include the framework 41 being fixedly installed in the flue and it is arranged in a crossed manner in
Supporting rod 44 in the framework, several supporting rods 44 in framework 41 are divided into two layers of interval setting along flue extending direction,
Rotation axis is connected between two layers of supporting bar structure.In the present embodiment, the mixed unit is set to transverse support bar and longitudinal branch
Vertical flue is divided into several trellis channels by the intersection of strut, supporting rod arranged in a crossed manner, sprays into the gas in flue by lattice
Shape channel disperses, and under the flow-disturbing effect of mixed unit, forms strong eddy flow and turbulent flow, make flue gas and ammonia shorter
Distance in can be achieved with extremely adequately mixing.From the point of view of practicality, the framework in the present embodiment and supporting rod
Using steel structure.
As shown in figure 4, a kind of SCR denitration system is present embodiments provided, including flue, the spray ammonia lattice in the flue
Grid and the equal mixing device of SCR denitration system flue gas, the direction of equal mixing device forcibly changing gas flowing, and by dynamic
The mode of state disturbance makes SCR denitration system flue gas duct uniform concentration distribution.
To allow gas in SCR denitration system to be in turbulence state, as shown in figure 4, the SCR denitration system is arranged two
Mixing device is located at the upstream and downstream of ammonia-spraying grid.The equal mixing device of upstream makes each component in flue gas uniformly divide
Cloth, and then make each component in flue gas that can be come into full contact with ammonia;The equal mixing device in downstream makes to spray from ammonia-spraying grid
Ammonia be sufficiently mixed with flue gas.To ensure lower resistance drop, energy utilization efficiency is improved, in the present embodiment, described in two
Spacing between equal mixing device is 1900mm.
The equal mixing device of SCR denitration system flue gas of the utility model embodiment 1 is applied into Mr. Yu coal-burning power plant (boiler
II 1 types of model DG1900/25.4-, boiler load 600MW), exhaust gas volumn 227000Nm3/ h, 300~400 DEG C of flue-gas temperature, cigarette
NO in gasxA concentration of 620mg/Nm3, ammonia nitrogen finally makes NO in flue gas than 0.941xConcentration is reduced to 40mg/Nm3Within, denitration
Efficiency is 94%, and ammonia slip concentration is reduced to 3ppm hereinafter, meeting the requirement of coal-fired boiler in power plant " minimum discharge " standard.
As the alternative embodiments of embodiment 1, equal mixing device is only arranged at the upstream or downstream of ammonia-spraying grid.
As the alternative embodiments of embodiment 1, the non-co-planar setting of multiple mixed units of same equal mixing device, but
Along scattering device before and after the extending direction of flue.
As the alternative embodiments of embodiment 1, two movable flabellums 42 are mutually perpendicular to rotation axis 43.
Embodiment 2
The present embodiment and 1 structure of embodiment are essentially identical, the difference is that SCR denitration system packet described in the present embodiment
Include 3 equal mixing devices, wherein 1 equal mixing device is installed in ammonia-spraying grid upstream, 2 equal mixing devices are installed in downstream.It is each described equal
Mixing device is made of 15 mixed units, and each mixed unit includes 8 movable flabellums, the blade face of the activity flabellum with it is described
The angle of the airintake direction of flue is 90 °.
The equal mixing device of SCR denitration system flue gas of the utility model embodiment 2 is applied into Mr. Yu coal-burning power plant, boiler
Load 350MW, exhaust gas volumn 1048666Nm3/ h, 300~400 DEG C of flue-gas temperature, NO in flue gasxA concentration of 560mg/Nm3, ammonia nitrogen
Than 0.902, finally make NO in flue gasxConcentration is reduced to 40mg/Nm3Within, denitration efficiency 93%, ammonia slip concentration is reduced to
3ppm is hereinafter, meet the requirement of coal-fired boiler in power plant " minimum discharge " standard.
Embodiment 3
The present embodiment and 1 structure of embodiment are essentially identical, the difference is that SCR denitration system packet described in the present embodiment
Include 5 equal mixing devices, wherein 2 equal mixing devices are installed in ammonia-spraying grid upstream, 3 equal mixing devices are installed in downstream.It is each described equal
Mixing device is made of 2 mixed units, and each mixed unit includes 2 movable flabellums, the blade face of the activity flabellum with it is described
The angle of the airintake direction of flue is 15 °.
The equal mixing device of SCR denitration system flue gas of the utility model embodiment 3 is applied into Mr. Yu coal-burning power plant, boiler
Load 350MW, exhaust gas volumn 1048666Nm3/ h, 300~400 DEG C of flue-gas temperature, NO in flue gasxA concentration of 560mg/Nm3, ammonia nitrogen
Than 0.902, finally make NO in flue gasxConcentration is reduced to 45mg/Nm3Within, denitration efficiency 92%, ammonia slip concentration is reduced to
3ppm is hereinafter, meet the requirement of coal-fired boiler in power plant " minimum discharge " standard.
Comparative example 1
The equal mixing device of Chinese patent CN204034564U embodiments 1 is applied into Mr. Yu coal-burning power plant, boiler load
350MW, exhaust gas volumn 1048666Nm3/ h, 300~400 DEG C of flue-gas temperature, NO in flue gasxA concentration of 560mg/Nm3, ammonia nitrogen ratio
0.902, finally make NO in flue gasxConcentration is reduced to 100mg/Nm3Within, denitration efficiency 82%, ammonia slip concentration is reduced to
15ppm。
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Among the protection domain that variation is created still in the utility model.
Claims (18)
1. a kind of equal mixing device of SCR denitration system flue gas, which is characterized in that including:
Support construction is set in flue;
At least one mixed unit, is set in the support construction, and each mixed unit includes at least one movable flabellum
(42), the movable flabellum (42) can be freely rotated relative to the support construction under external force.
2. the equal mixing device of SCR denitration system flue gas according to claim 1, which is characterized in that the activity flabellum
(42) blade face and the airintake direction of the flue are arranged in angle.
3. the equal mixing device of SCR denitration system flue gas according to claim 2, which is characterized in that the activity flabellum
(42) blade face and the airintake direction angle of the flue are 15~90 °.
4. the equal mixing device of SCR denitration system flue gas according to claim 1, which is characterized in that the mixed unit
There are 2~15.
5. the equal mixing device of SCR denitration system flue gas according to claim 4, which is characterized in that the mixed unit
Further include rotation axis (43), the rotation axis (43) is rotatably connected in the support construction, the activity flabellum (42)
It is fixedly connected in the rotation axis (43).
6. the equal mixing device of SCR denitration system flue gas according to claim 5, which is characterized in that each described mixed
Unit includes multiple movable flabellums (42), and multiple movable flabellums (42) are spaced to be shifted to install in the rotation axis
(43) on.
7. the equal mixing device of SCR denitration system flue gas according to claim 6, which is characterized in that each described mixed
The movable flabellum (42) of unit has 2~8.
8. the equal mixing device of SCR denitration system flue gas according to claim 7, which is characterized in that same described mixed
The blade face of multiple movable flabellums (42) of unit and the airintake direction angle of the flue are all different.
9. the equal mixing device of SCR denitration system flue gas according to claim 8, which is characterized in that the activity flabellum
(42) extending direction of blade face autorotation center to radial edges towards the flue of flabellum, which tilts, to be extended.
10. the equal mixing device of SCR denitration system flue gas according to claim 9, which is characterized in that multiple described mixed
The coplanar setting of unit.
11. the equal mixing device of SCR denitration system flue gas according to claim 10, which is characterized in that multiple described equal
Plane where mixed unit is arranged perpendicular to the flue extending direction.
12. the equal mixing device of SCR denitration system flue gas according to claim 1, which is characterized in that the support construction
It is described including the framework (41) that is fixedly installed in the flue and arranged in a crossed manner in the supporting rod (44) in the framework
Mixed unit is set on the supporting rod (44).
13. the equal mixing device of SCR denitration system flue gas according to claim 12, which is characterized in that described mixed single
Member is set to the intersection of multiple supporting rods (44).
14. a kind of SCR denitration system, which is characterized in that including:
Flue;
Ammonia-spraying grid (3) is set in the flue;
And at least one such as equal mixing device of claim 1-13 any one of them SCR denitration system flue gas, it is described equal
Mixing device (4) is set in the flue.
15. SCR denitration system according to claim 14, which is characterized in that the equal mixing device (4) is located at the spray ammonia
Grid (3) downstream.
16. SCR denitration system according to claim 15, which is characterized in that the equal mixing device (4) is also located at the spray
Ammonia grid (3) upstream.
17. SCR denitration system according to claim 14, which is characterized in that the equal mixing device (4) is set as multiple,
It is arranged along the extending direction interval of the flue, the spacing distance of the two neighboring equal mixing device (4) is not less than 1900mm.
18. SCR denitration system according to claim 17, which is characterized in that be located at the institute in the ammonia-spraying grid (3) downstream
It is 1~3 to state equal mixing device (4), and it is 1~2 to be located at equal mixing device (4) described in the ammonia-spraying grid (3) upstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012927.0U CN207996567U (en) | 2018-01-04 | 2018-01-04 | The equal mixing device of SCR denitration system flue gas and SCR denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012927.0U CN207996567U (en) | 2018-01-04 | 2018-01-04 | The equal mixing device of SCR denitration system flue gas and SCR denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207996567U true CN207996567U (en) | 2018-10-23 |
Family
ID=63836622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820012927.0U Active CN207996567U (en) | 2018-01-04 | 2018-01-04 | The equal mixing device of SCR denitration system flue gas and SCR denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207996567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610291A (en) * | 2020-04-24 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | Power station boiler SCR (Selective catalytic reduction) inlet and outlet section NOxMeasuring system for concentration field |
| CN115888455A (en) * | 2022-11-15 | 2023-04-04 | 安徽威达环保科技股份有限公司 | Flue gas homogeneous phase device for SCR denitration system |
-
2018
- 2018-01-04 CN CN201820012927.0U patent/CN207996567U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610291A (en) * | 2020-04-24 | 2020-09-01 | 国网河北省电力有限公司电力科学研究院 | Power station boiler SCR (Selective catalytic reduction) inlet and outlet section NOxMeasuring system for concentration field |
| CN115888455A (en) * | 2022-11-15 | 2023-04-04 | 安徽威达环保科技股份有限公司 | Flue gas homogeneous phase device for SCR denitration system |
| CN115888455B (en) * | 2022-11-15 | 2023-08-29 | 安徽威达环保科技股份有限公司 | Flue gas homogenizer for SCR denitration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205598967U (en) | A static mixer for selective catalytic reduction system | |
| CN207996570U (en) | A kind of SCR denitration system | |
| CN209576362U (en) | A kind of Novel SCR denitrating system static state vortex mixer | |
| CN107081055B (en) | A kind of eddy flow combined type SCR static mixer | |
| CN204034564U (en) | The equal mixing device of a kind of gas | |
| CN208839353U (en) | A kind of ammonia air mixing device for flue gas denitrification system | |
| CN103768938B (en) | The equal mixing device of a kind of ammonia-flue gas | |
| CN102626585A (en) | V-type ammonia spraying and mixing system for SCR (Selective Catalytic Reduction) smoke denitrification device | |
| CN207996567U (en) | The equal mixing device of SCR denitration system flue gas and SCR denitration system | |
| CN202844884U (en) | Ammonia spraying and eddy-mixing device of flue gas denitrification system | |
| CN207385234U (en) | A reverse cross static mixer for flue gas denitration system | |
| CN103007701A (en) | Petal ammonia injection grid for combining local vortex and overall vortex | |
| CN102698579B (en) | Ammonia injection and eddy current mixing device and method of flue gas denitrification system | |
| CN108939914A (en) | A kind of SCR denitrating flue gas classification rotational flow mixing device | |
| CN207980871U (en) | Rectangular nozzle formula ammonia-spraying grid suitable for flue gas SCR denitration technique ammonia spraying system | |
| CN207970694U (en) | A kind of ammonia nitrogen mixing arrangement for apparatus of thermo-electric power boiler spray ammonia system | |
| CN203577639U (en) | Swirl mixing device for SCR (selective catalytic reduction) flue gas denitrification system | |
| CN101450278B (en) | Whole wing type current sharing and partition adjustable ammonia-gas spraying device | |
| CN106731811B (en) | Ammonia spraying device of SCR flue gas denitration system | |
| CN105289348A (en) | Venturi tube type ammonia mixer | |
| JP2016203032A (en) | Mixer of fluid and denitration device provided with the mixer of fluid | |
| CN204601997U (en) | A kind of boiler smoke and ammonia mixing arrangement | |
| CN109351184B (en) | Composite mixing device, SCR denitration equipment and composite ammonia spraying mixing method | |
| CN201669061U (en) | Static mixer and flue gas denitrification device | |
| CN208642321U (en) | A kind of efficient mixing ammonia-gas spraying device for flue gas denitrification system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |